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arXiv · 1004.0548

Non-monotonic variation of anomalous Hall effect with spin orbit coupling strength

M. Chen·Z. Shi·S. M. Zhou·J. Li·W. J. Xu·X. X. Zhang·J. Du
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Abstract

For L1(0) FePt films, the anomalous Hall resistivity is found to be proportional to spontaneous magnetization $M_{\mathrm{S}}$. After the $M_{\mathrm{S}}$ temperature effect is eliminated, $ρ_{\mathrm{xyo}}$ can be fitted by $ρ_{\mathrm{xyo}}=a_{\mathrm{o}}ρ_{\mathrm{xx}}+ b_{\mathrm{o}}ρ_{\mathrm{xx}}^{\mathrm{2}}$. $a_{\mathrm{o}}$ and $b_{\mathrm{o}}$ change non-monotonically with chemical long range ordering degree $S$. Accordingly, it is indicated that for L1(0) FePt films the spin orbit coupling strength increases monotonically with increasing $S$.

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M. Chen, Z. Shi, S. M. Zhou, J. Li, W. J. Xu, X. X. Zhang, J. Du. 2010-04-27. Non-monotonic variation of anomalous Hall effect with spin orbit coupling strength. https://arxiv.org/abs/1004.0548

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